Device for transferring a material in the form of a film applied on a carrier strip

ABSTRACT

A device for transferring a film from a carrier strip a substrate comprises a supply reel for the film coated carrier strip and an empty reel for receiving the de-coated carrier strip. The carrier strip is guided over an applicator base and over deflector rollers. The effective working edge of applicator base is arranged to be inclined at a fixed angle between 40° and 50° relative to the reel axes.

BACKGROUND OF THE INVENTION

It is known to guide, for example a correcting medium applied to acarrier strip, by way of a handy-to-use appliance over, for example, aline of text or regions of that line. The correcting medium then adheresto the surface of the paper and the covering material matched to thecolour of the paper can then be written over once more.

Applicator means to be guided by hand on a substrate are known, forexample, glue tongues with corresponding applicator spouts, so-termedmarker pens which mark text positions by particularly prominent colours,and so-termed transfer dispensers which are to the forefront here, allin a mode of handling similar to writing instruments.

Devices of that kind for application of correcting ink to a sheet,wherein the correcting ink is applied as a film to a carrier strip, areindicated by EP 0 511 522 B1 or the corresponding DE 92 119 119 U1, EP 0566 406 B1, EP 0 656 308 A1, EP 0 717 001 or FR 2 263 131 A1, whereinthe working edges of the handy-to-use appliance, around which the stripwith the film to be applied is guided, are arranged parallel to the axisof the storage drum or at 90° thereto. Thus, for example, EP 0 644 145shows a working head of the device on the one hand in a strip useposition, in which the working edge is arranged in the same horizontalplane as the main plane of the device housing, and on the other hand inan exchange position, in which the working edge is arranged parallel tothe axes of the reels so that the strip can be easily taken away. Forthis purpose the head has a form of bayonet lock for positioning theworking edge in the two positions.

If handy-to-use appliances with a working edge arranged parallel to theaxes of the coil reels are exceedingly unsatisfactory with regard totheir manipulation, the handy-to-use appliances also have thedisadvantage of the working edge thereof lying in a position, or beingable to be brought into a position, oriented at 90° to the reel axes.This sideways arrangement has the disadvantage that the transferpressure to be transmitted to the strip at the working edge has to bearranged outside the centre axis of the housing, so that duringmanipulation a turning moment is automatically produced which has to becompensated for by the user consciously or unconsciously applyingresistance, whereby the ease of manipulation is significantly impaired.Thus, it is more difficult to exert a pressure distributed uniformlyover the entire application strip, i.e. the working edge.

DE 44 04 103 A1 shows a device with a working edge displaced 90°relative to the housing, the edge being spaced so far from the centreaxis of the handy-to-use appliance that it does indeed remain stablewhen initiating correcting movements, but is unstable during thecorrecting movement itself, i.e. covering the text to be cancelled, as aturning moment is produced, the force of which has to be absorbed by thehand in addition to the pulling resistance.

A further disadvantage is that the carrier strip has to be deflected toan extreme degree and is, in part, twisted.

SUMMARY OF THE INVENTION

The object of the invention, apart from avoidance of the above-describeddisadvantages, is to provide a device which can be handled particularlycomfortably and avoids excessive loading of the carrier strip.

In the case of a device of the kind denoted in the introduction thisobject is met in accordance with the invention in that the effectiveworking edge of the applicator base is arranged to be inclined at anangle of 40 to 50° relative to the reel axes.

Due to the positioning of the working edge at an angle between 40° and50° it is achieved on the one hand that no unnecessary turning momentsact on the handy-to-use appliance during use thereof and on the otherhand due to the comparatively small deflection of the carrier stripthere is no worry about special loading of the carrier strip.

Further refinements of the invention are evident from the subclaims, inwhich connection it can in particular be provided that in the interiorof the housing the strip guide rollers lie in substantially the sameplane as the reel axes on the one hand and the centre point of theworking edge on the other hand.

It is achieved by this arrangement of the deflecting rollers that thestrip guidance of the carrier strip extends in a linear direction to theapplicator base, which leads to a convenience of manipulation comparablewith that known in, for example, ink-applying marker pens.

If the housing is designed, as known per se, in flacon-like manner witha housing region running in a point to the working edge and a slightlycurved opposite edge region, wherein the notional circumferential linesperpendicular to the main axis of the housing extend helically at anoffset relative to one another by a small degree of angle, a veryconvenient handling character of the device according to the inventionresults in all cases, the fingers of the user being brought by thehousing shape almost automatically into the correct handling position.

The invention also proposes that the housing, as known per se, isprovided in the region of the supply reel with an open filling-stateinspection aperture, the supply reel is made of transparent material andthe carrier disc of the strip coil of the supply reel is associated withthe filling-state inspection aperture so as to cover that aperture.

Since the carrier disc, which is utilised at the same time as a coverfor an inspection aperture, is associated with this aperture, a moreuniform material distribution of components compared with the usual modeof construction results in the interior of the device, as the carrierdisc or edge disc of the supply reel is arranged on the opposite side ofthe slip clutch.

THE DRAWINGS

Further features, details and advantages of the invention are evident byreference to the following description and on the basis of the drawings,in which:

FIG. 1 shows a device housing, which is illustrated as a wire model, inperspective illustration,

FIG. 1a shows individual detail sections a to e on viewing line A-B inFIG. 1,

FIG. 2 shows an elevation of the housing according to the invention inaccordance with arrow II in FIG. 1,

FIG. 3 shows a cross-section approximately according to the line A-B inFIG. 1, with the profile of the housing edge smoothed out for reasons ofillustration,

FIG. 4 shows an elevation according to arrow IV in FIG. 3 with partlybroken-away edge regions,

FIG. 5 shows in perspective illustration the applicator base withworking edge and deflecting rollers in enlarged representation,

FIG. 5a shows the fixing of the applicator base in the housing shells,and

FIG. 6 shows the matching to the hand position by virtue of the housingdesign.

DETAILED DESCRIPTION

The device denoted generally by 1 comprises a flacon-like housing 2, thespecific shape of which is evident from the wire model illustrationaccording to FIGS. 1 and 2. Individual cross sections, designated a toe, of the housing are illustrated in FIG. 1a extracted so as to be onebelow the other, wherein the line going through the centres of area isdepicted in dot-dash form. The helically twisting ensures, in use of thedevice 1, a particular comfort in handling, as the housing shape isergonomically matched to the hand of the user, as more or less evidentfrom FIG. 6.

In the illustrated example the working edge, which is denoted by 3, ofthe applicator base 4 is offset by 45° relative to the reel axes 5 and 5a reproduced schematically in FIG. 3, wherein the reel axes 5 and 5 aare disposed perpendicularly to the centre axis A-B depicted in FIG. 1.

As evident from, for example, FIGS. 3 and 4 a carrier strip 8 is woundup on a carrier disc 6, thus a supply reel denoted generally by 7, whichcarrier strip 8 which is drawn off this to be deflected over theapplicator base 4 and the working edge 3 thereof and is wound up on anempty reel- or storage reel-9 in the interior of the housing 2, whereinsynchronisation of the rotational movements is undertaken by a slipclutch which is denoted generally by 10 and which is not explained inmore detail.

In order to facilitate guidance over the working edge 3 of theapplicator base 4, two deflecting rollers 11 positioned substantially onor in the immediate vicinity of the line A-B are provided in theinterior of the housing 2. The corresponding arrangement of thedeflecting rollers 11 in relation to the applicator base 4 isillustrated in FIG. 5 in enlarged scale. The embedding of the applicatorbase 4 in the housing halves denoted by 2 a and 2 b is reproduced inenlarged scale in FIG. 5a.

A filling-state inspection aperture 12 is provided in one housing half,for example 2 a, in the region of the supply coil of applicator strip 8.Due to the specially selected design, namely that the slip clutch 10 ofthe carrier disc 6 is disposed opposite, the opportunity is provided tomake the carrier disc 6 from a transparent material so that this carrierdisc 6 automatically closes off the filling-state inspection aperture 12relative to the housing interior as evident from, for example, FIG. 3.

A simplified illustration of the handling of the device 1 is reproducedin FIG. 6.

The described embodiment of the invention can obviously be changed inmany respects without departing from the basic concept. Thus, forexample, one of the housing halves 2 a and 2 b can be made oftransparent material and the angular setting of the working edge canvary around the 45° angle from about 40° to 50°. The twisting of thehousing region in the direction of the applicator base 4 can be adaptedto the manipulation of a left-handed person and others.

What is claimed is:
 1. In a device for the transfer of a material, whichis in the form of a film applied to a carrier strip or transferred to asubstrate, such as a sheet of writing or drawing paper, comprising asupply reel for the film-coated carrier strip and an empty reel forreceiving the de-coated carrier strip, wherein the coated carrier stripis guided over an applicator base and in the interior of the housingover deflector rollers, characterized in that the effective working edgeof the applicator base is arranged to be inclined at only a single anglebetween 40° and 50° relative to the reel axes.
 2. Device according toclaim 1, characterized in that in the interior of the housing stripguide rollers are disposed in substantially the same plane as the reelaxes and the center point of the working edge.
 3. Device according toclaim 2, characterized in that the housing is shaped to be a helicallytwisted shape with a housing region running in a point to the workingedge and a slightly curved opposite edge region, wherein the notionalcircumferential lines perpendicular to the main axis of the housingextend helically at an offset relative to one another by a small degreeof angle.
 4. Device according to claim 3, characterized in that thehousing is provided in the region of the supply reel with an openfilling-state inspection window, the supply reel is made of transparentmaterial and the carrier disc of the strip coil of the supply reel isassociated with the filling-station inspection aperture so as to coverthat aperture.
 5. Device according to claim 1, characterized in that thehousing is shaped to be a helically twisted shape with a housing regionrunning in a point to the working edge and a slightly curved oppositeedge region, wherein the notional circumferential lines perpendicular tothe main axis of the housing extend helically at an offset relative toone another by a small degree of angle.
 6. Device according to claim 1,characterized in that the housing is provided in the region of thesupply reel with an open filling-state inspection window, the supplyreel is made of transparent material and the carrier disc of the stripcoil of the supply reel is associated with the filling-stationinspection aperture so as to cover that aperture.
 7. In a device for thetransfer of a material, which is in the form of a film applied to acarrier strip or transferred to a substrate, such as a sheet of writingor drawing paper, comprising a supply reel for the film-coated carrierstrip and an empty reel for receiving the de-coated carrier strip,wherein the coated carrier strip is guided over an applicator base andin the interior of the housing over deflector rollers, characterized inthat the effective working edge of the applicator base is arranged to beinclined at an angle limited between 40° and 50° relative to the reelaxes.
 8. Device according to claim 7, characterized in that theapplicator base is non-rotatably mounted to fix the angle of the workingedge.